How many times a wheel of radius 28 cm must rotate to go 352m? (Take `pi=22/7`)

Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm ( Use pi=22/7 )

Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60^(@). use pi=(22)/(7)

A solid consisting of a right circular cone standing on a hemisphere , is placed upright in a right circular cylinder full of water and touching the bottom. Find the volume of water left in the cylinder , given that the radius of the cylinder is 3 cm and its height is 6 cm The radius of the hemisphere is 2 cm and the height of the cone is 4 cm . (Take pi =(22)/(7) ).

From a circular card sheet of radius 14cm, two circles of radius 3.5cm and a rectangle of length 3cm and breadth 1cm are removed (as shown in the adjoining figure. Find the area of the remaining sheet. (Take pi=22/7 )

An iron sphere of radius 8 cm is melted and recast into smaller spheres of radius 1 cm. how many such spheres are formed ?

Find the circumference of the circles with the following radius: (Take pi=22/7 ) 28cm

Find the area of the following circles, given that: radius=5cm (Take pi=22/7 )